Question 665589
  <pre><font face = "Tohoma" size = 3 color = "indigo"><b> 
Hi,
It takes 16 painters 7 hours to paint a building, 
how many painters{{{highlight(x)}}} working at the same rate are needed to paint the building in 4 hours? 
{{{(M[1]*T[1])/W[1] = (M[2]*T[2])/W[2]}}}
  {{{16*7 =  x * 4}}}
        28 = x